Physics, 21.11.2019 20:31 02s54mcoupe
Apuzzle to think about: two weights of mass 1 kg hang from strings which go over pulleys (see illustration below). the strings are attached to the two ends of a spring scale which reads the force. does the scale read 0 n, 9.8 n, or 19.6 n?
Answers: 3
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The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
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The air that we breath is made mostly of which gaseous molecule
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In which of these cases are the two wave points considered to be in phase with each other?
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Apuzzle to think about: two weights of mass 1 kg hang from strings which go over pulleys (see illus...
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